Finding the Fourth Proportional to 156,005,666.26, 215,287,625.16 and 86,390,963.08
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Solution
The fourth proportional to 156,005,666.26, 215,287,625.16 and 86,390,963.08 is: 119,219,421.46
Step by Step Solution
- Step 1: Write the proportion equation
156,005,666.26 : 215,287,625.16 = 86,390,963.08 : x - Step 2: Convert to fraction form
156,005,666.26/215,287,625.16 = 86,390,963.08/x - Step 3: Cross multiply
156,005,666.26x = 215,287,625.16 × 86,390,963.08 - Step 4: Simplify right side
156,005,666.26x = 18,598,905,276,778,440 - Step 5: Solve for x
x = 18,598,905,276,778,440/156,005,666.26 - Step 6: Final answer
x = 119,219,421.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.